An abnormal curve of the lumbar spine is lordosis, also called sway back. An abnormal curve of the thoracic spine is kyphosis, also called hunchback. An abnormal curve from side-to-side is called scoliosis.
There are approximately 560,000,000,000 planets in outer space that scientists have discovered. In this solar system, there are eight planets. In this galaxy, there are likely between 50 billion and a trillion planets-or more. At this point, we can hardly guess.
For those of us who believe dwarf planets should be counted as a subclass of planets, the latest status is that our solar system now has 13 planets: four terrestrial planets, four jovian planets, and five dwarf planets.